NUMERICAL APPROXIMATION OF THE ELASTIC-VISCOPLASTIC CONTACT PROBLEM USING NONCOINCIDING FINITE ELEMENT MESHES

摘要

We are interested in the unilateral contact problem of elastic-viscoplastic bodies in a bidimensional context. The corresponding time dependent variational inequality is approximated in the space variable with nonconforming finite element methods, which allow the handling of nonmatching meshes on the contact zone. Error estimates are established and the corresponding numerical experiments are performed.